The important part for answering this question is: The game is scheduled to be played at The Brick Field at Commonwealth Stadium in Edmonton, Alberta on Sunday, November 25, 2018.
This justifies what answer for what question? Q & A: 
Passage: The game is scheduled to be played at The Brick Field at Commonwealth Stadium in Edmonton, Alberta on Sunday, November 25, 2018.

Question: Based on this passage, where is the 2018 grey cup being played?
The Brick Field at Commonwealth Stadium in Edmonton , Alberta